I would like to help you with regard to the fuel trim numbers, but I have not pursued that unit of measurement with my diagnostic equipment. I continue to monitor Lean Burn using my Scan Gauge. I have bought the Bluetooth adapter from Amazon but not the better app. I need to make a holder for the Samsung notebook that will place it for easy viewing when driving. I recently drove over 4500 miles averaging 60- 70 MPH with the A/C on from Texas to California and back. I would average about 38 mpg with one tank delivering 40 MPG. Prior to the trip I installed a new Cat Con as a maintenance measure since the car has 230K miles on the clock. Other than that, the car is bone stock.
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